Xterm question

I have a lot of commands saved in Xterm. I know:
#history -c
to clear this, however it would be really good if these commands could be
listed and selectively deleted.
If such a thing can be done it would be good, and huge. With Debian I've
come to realize that someone out there may already know how to do this.
Just hoping whoever that is might share his knowledge.
Thanks,
--
CK